Sand slinger



Jan. 19; 1932. D. B. DIMICK SAND SLINGER Filed Nov.25, 1929{Sheets-Sheet 1 D. B. DEMICK SAND SLINGER Jan. 19, 1932.

2 Sheecs-Sheet 2 Filed NOV. 25, 1929 Patented Jan. 19, 1932 i I a i res;

DLANIEL BAKER nIMIoK, or BIRMINGHAM, ALABAMA sANn smnenn 1 Applicationfiled November 25, 1929. Serial No. 409,661.

The present invention relates to improvesupporting unit 5 and is free torevolve therements in sand slingers and has for its object with in ahorizontal plane. to secure the proper adjustment of the path Sandsling-ers are usually built with the of the sand as it leaves the sandslinger head head 6 so adjusted. that the center line D D 5 and travelsinto the mold. i ofthe ramming unit is in a vertical plane di- Theobject of this inventionis to provide rectly abovethe center line C (lof its supan adjustment means for thesand slinger porting unit. whichcan be readily applied to existing The ramming unit 7 is made up of amotor equipment; which is capable of quick and 8,. together withconnecting shafts to the 39 accurate manipulation to vary the ramminghead 6. The ramming unit as a whole in presangle at the will of theoperator; which (0111- ent sand slingers is connected through the prisesadjustable means serving as a stop to swivel 9 directly to thesupporting unit 5 by limit the swing of the sand slinger for quick meansof the split clamp 10 securely clamped and accurate manipulation; whichembodies to thesupporting arm 5 by means of the clamp.

15 means to positively lock the adjusting means bolts 11'. The swivelhead, accordin to my at any angle desired; which provides aspowinvention, is attached to the supporting arm erful drive to enablethe heavy sand slinger 5 by forcing one end of a shaft 12 into the tobemanipulated readily byhand; and which open end of the supporting arm 5and seutilizes as the preferred means an eccentric curely fastening ittherein, making the hol- 20 and slide drive underhung below the axis lowsupporting arm5 and the extension shaft on which the sand slinger ismounted to pro 12, for all practical purposes, one piece. The

vide a most conveniently accessible means split clampi0 is clamped toasleeve 13 by to rock the apparatus through its angular means of thebolts 11. This sleeve 13 is adjustments about its said axis. mountedloose on the shaft 12 and is pro- With the foregoing and other objectsin vided with a fork or yoke 14, asshown in view, this invention will bemore fully de- Figure 3, in which is shown a sliding block scribedhereinafter, and will be more particu- 15. Shaft housings 16 aresecurely fastened larly pointed out in the claims appended to the shaft12 in suchmanner that they will hereto. at all times remain stationaryin respect to In the drawings, wherein like symbols resaid shaft and itssupporting arm '5. The

for to like or corresponding parts throughout sleeveis free torevolvearound shaft 12 unthe several views less held by some outsidemeans.

Fig. 1 is a side elevation illustrating alcon- A l ecceflti'lc shaft 17h Solid bearing ventional type of sand slinger equipped with 18 $119lmfik Shaft h ing 16 anda split my improved means for mounting and adl19 the flont shaft houslng j ti Same, s Th1 front split hearing has ataper threaded Fig. 2 is avertical cross section of theswivel porblqn 2Oi 1 3 and m f i head, by means of which the angle of ram the 9 j' f mThe eccentnc 40 may be shifted as hereindescribed.v f m sildmg block AFi s andaare cross-sectional views taken p- Lhr?&deQ t 1s screwed Onto t0 th HI IH IVW split bearingQO and 1s fastened to the disc lespec on e22, to which is attached the handle 23. The IV 0f g- I r hand wheel 24is securely attached to the Referrmg Particularly to the draw outer endof the eccentric shaft 17. Two

45 ings, the sand slinger is mounted on a supdj t b stops 25 are clampedto the i porting 'Llllll] 5 \VlliCll is suspended 011 it b389, f thehand 711 .31 24, and a, fi Qd top is not shown, and is free to revolvein a hori securely fastened to the stationary front zontal plane aroundthe center line of its shaft housing 16. When the shaft 12 is sesupport.The ramming unit of the sand curely fastened in the supporting arm 5,the slinger is suspended on the free end of this shaft 12, shaft housing16 and the bearings therein must remain in axial relation with thesupporting unit 5. lVith the eccentric shaft 17 in the vertical positionshown in Figure 3, the split clamp 10 is fastened with the ramming unitin a position so that the centerline D D is directly over and in thesame vertical plane with the center line C C of the supporting unit. Inthis position the sand from the head 6 will be thrown verticallydownward.

By means of the hand wheel 24, the eccentric shaft 17 may be turnedclockwise, or counter-clockwise, thereby swinging the sleeve 13 and theramming unit 7 either to the right or left around the center line of thesupporting unit 5 as an axis. The swinging of the sleeve and the rammingunit around this axis C C changes the path of the sand as it is thrownfrom the head 6 on an angle to the vertical. The maximum angle ofadjustment is determined by the amount of eccentricity in the e centricshaft 17. As the stop 26 in the front shaft housing 16 is stationary, anad justment of the hand wheel stop 25 may be made to limit the travel ofthe hand wheel 24. IV hen the hand wheel 24 is turned to give theangular adjustment desired, the nut 21 is tightened on the split bearing20 by means of the disc 22 and the handle 23, causing the split bearing20 to clamp on the eccentric shaft 17 and securely hold this shaft inthe position desired.

In operation, the machine operator determines on the angles to the rightand left of vertical which are desired for the particular work he isdoing. He adjusts the hand wheel clamps 25 so that when the hand wheel24: is turned until one clamp 25 is in contact with permanent stop 26,the desired angle to the left of vertical is obtained. The second clamp25 is adjusted so that when it comes in contact with the permanent stop26, the desired angle to the right of vertical is obtained.

In the ramming of long patterns, it is desired to throw the sand againstthe pattern instead of throwing the sand vertically downward. On thesame pattern it is necessary to have the sand travel at an angle to theright of vertical when ramming at one place, and at an angle to the leftof center at another place. l fith the adjustable swivel head abovedescribed, the operator would unscrew the nut 21, turn the hand wheel 24to the left until the adjustable stop 25 comes in contact with thepermanent stop 26 when he wanted the sand to be thrown at an angle tothe left of vertical. He would then tighten the split bearing 20 ontothe eccentric shaft 17, holding the sand slinger at this adjustmentuntil another one is desired.

When an adjustment to the right is desired, the operator unscrews thenut'21, freeing the eccentric shaft 17, turns the hand wheel 22 untilthe otheradjustable clamp 25 comes in contact with the permanent stop26, thereby throwing the ramming unit over and obtaining the desiredangle to the right of vertical as a path for the sand. He then clampsthe ramming unit in this position by tightening the nut 21 on the splitbearing 20.

The eccentric drive underhung below the supporting unit 5 provides apowerful means for effecting accurate and quick adjustment of theslinger head, thereby enabling such adjustment to be accomplished easilyand readily by hand, and moreover the eccentric will serve to hold thehead unbalanced to right or left without undue strain on the operator.By mounting the eccentric below the supporting unit the desired amountof leverage can be readily obtained and at the same time the elementsfor manipulating the sand slinger and for clamping it in adjustedpositions are more accessible to an operator standing on the floor.

It is obvious that various changes and modifications may be made in thedetails of construction and design of the above specifically describedembodiment of this invention without departing from the spirit itself,such changes and modifications being restricted only by the scope of thefollowing claims:

l Vhat I claim is 1. The combination with a sand slinger and itssupport, of hand operated eccentric actuated adjustment means to rocksaid sand slinger on its support and adjustable stop means to limit itsthrowing angle to right or left of vertical.

2. In a ramming machine, a sand slinger having a support, leverage meansunderhung from said support and adapted to rock the slinger about asubstantially horizontel axis on said support, and a pair of adjustablestop means to limit said rocking movements.

3. In a ramming machine, a sand slinger having a support, hand wheeladjustment means to rock the slinger about a substanially horizontalaXis on said support, and adjustable stop means on said wheel andsupport to limit said rocking movements.

4. In a ran'nning machine, a sand slinger, means to mount said slingerto rock on a substantially horizontal axis, hand wheel adjustment meansto rock the slinger to permit its ramming angle to be adjusted to rightor left of vertical, and quick action clamp means acting on the handadjustment means to loclr the slinger in the desired adjustment.

5. In a ramming machine, a member providing a horizontal supportingaxis, a sand slinger mounted to rock about said axis to vary its rammingangle, and an adjustment means comprising a manually operable eccentricand a slide block so carried by said member as to rock said sandslinger.

6. In a ramming machine, member providing a horizontal supporting axis,a sand slinger mounted to rock about said axis to vary its rammingangle, and an eccentric Lil means so underhung from said member as torock said sand slinger.

7 In a ramming machine, a member providing a horizontal supporting axis,a sand slinger mounted to rock about said axis to vary its rammingangle, a means to rock said sand slinger, and clamp means so engageablezontally swinging sleeve support carrying an with the rocking means asto lock the sand slinger in any desired angular adjustment. 8. In aramming machine, a support, a swivel head adjustable thereon, a sandslinger carried by said head and adjustable therewith to vary itsramming angle, and an eccentric and slide drive to adjust the sandslinger.

9. In a ramming machine, a support, a swivel head adjustable thereon, asand slinger carried by said head and adjustable therewith to vary itsramming angle, and an eccentric and slide drive underhung from saidsupport and adapted to adjust the sand slinger.

10. In a ramming machine having a horiextension shaft, a sand slingermounted to rock on said shaft to vary its ramming angle from vertical, abracket rlgidly underhung from saidsupport, and a drive means jour-'naled in said bracket and comprising a crank arm operatively connectedto the sand slinger to rock it.

11. In a ramming machine having a horizontally swinging supportcomprising an extension shaft, a sand slinger having a swivel supportmounted to rock on said shaft to vary its ramming angle from vertical,brackets underhung from said support, and an adjustment means journaledin said brackets and operatively connected to an element underhung fromthe swivel support for the sand slinger to rock it.

12. In a ramming machine having a horizontally swinging tubular support,an extension shaft fixed in the free end of said support, underhungbearing brackets fast on said shaft, a sleeve rotatable on the shaft, ancecentric shaftjournaled in said brackets, a yoke forthe eccentric fastto said sleeve and adapted to be actuated by the eccentric shaft,

and meansto mount a sand slinger on said sleeve.

13. In a ramming machine, a swinging arm having a sleeve journaledthereon near its free end, a sand slinger mounted on said sleeve, andmeans to rock and lock the sleeve, comprising an eccentric shaft,bearings therefor carried by the arm, a yoke coacting with the eccentricand rigidly connected to the sand slinger, a hand wheel to operate theeccentric shaft, a clamp means to lock the said shaft to its bearings,and stop means to limit the hand wheel adjustment.

1%. In a ramming machine, a swinging arm having a sleeve j ournaledthereonnear itsfree end, sand slinger mounted on said sleeve, and meansto rock and lock the sleeve, comprising an eccentric shaft, bearingstherefor

